Metal-shaping machine



(No Model.)

, H. DRESBS.

-METAL SHAPING MACHINE.

No. 544,569. f Patented Aug. 13,1895.

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UNITED STATES PATENT Erica- HENRY DREsEs, or cINcINNATI, OHIO.

METALAsl-IAPING MACHINE.

SPECIFICATION forming part of Letters Patent' No. 544,569, dated August13, 1895.

Application filed January 21, 1895. Serial No. 535 ,685. (N o model.)

in@ all whom it may concern.:

Be it known that I, HENRY DRESES, a citizen of the United States, and aresident of Cincinnati, Hamilton county, State of Ohio, have inventedcertain new and useful Improvements in Shapers; and I do declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same, attention being called to the accompanyingdrawings, with the reference-numerals marked thereon, which form a partof this specication.

This invention relates to improvements in shapers, crank-Shapers, andall similar machine-tools where a cutting-tool carried by areciprocating tool-carrier or so-called ram acts upon the work supportedin a fixed position within the range of its movement. The tool isadjustable to various positions, particularly to and from the work, tocut more or less deep, while the stroke of the ram is adjustable in amanner to vary the length over which the'tool acts upon the work.

By reason of the peculiar construction of these machines, particularlyof their frame and the location of the parts thereon which support theWork, only work of limited size, or such where the cutting is to be donenear the end lines thereof, can be shaped on them,

while otherwise where the portion to be cut is remote from the end linessuch part cannot be brought close enough to come within the reach of thetool. When cutting keyseats in shafts, for which purpose these machinesare well adapted and extensively used, this limitation makes itself feltwhen such keyseats are located remote from the ends of the shaft, whichcauses the intervening shaft part to interfere by preventing the part tobe cut out from coming within reach of the tool. To overcome this defectand adapt such machines for working pieces of metal of limitedthickness, but of considerable lengths and at any point of the latter,is the object of my invention, which latter is described in thefollowing specification, together with its operation, parts, andconstruction, and illustrated in the accompanying drawings, in whichmFigure 1 is a central longitudinal section of the upper part of acrank-Shaper, being a well-adapted representative type of this class ofmachines. Fig. 2 is a vertical cross-section, and Fig. 3 an end view, ofFig. l. Fig. 4 is a topview of internal details removed.

8 isv the upper part of the frame of such a machine, carrying at one endthe adjustable work-support 9. Inside at its top are pro,- vided twogrooved guideways l0, opposite each other and adapted to receive theflanges or slides 1l of the tool-carrier or ram 12. One end of thislatter overhangs the Work-support and'is provided with the .tool-holder13 and' the tool 14, secured to it adj ustably with reference to thework. This latter may represent in this case a shaft 15, requiring thecutting of a key-seat located at a considerable distance from the end.This shaft is supported' struction of the ram and the adjustabletoolholder thereon, do not form any features of my invention.

The upper end of vibrating arm 16 is forked,

each branch 19 connected to a link 20, the other ends of which connecteach to a ange 2l, depending from a nut 22, bored and threadedlengthwise and supported on a screw 23, which is longitudinally confinedwithin the ram.' By means of these links 20, nut 22, and screw 23, thevibrating armis connected to the ram. The position of thislatter on nut22 may be adjusted by turning screw 23, which then moves in eitherdirection, according to the manner of its operation, through said nutand assumes a dilferent position therein. Being longitudinally con finedto the ram, this latter moves with the screw, and by its positiondetermines the location of the points on the work between which the toolcuts. This adjustment is independent of and is not aected by nor does itaffectthe adjustment-of the length of the stroke. ing of screw 23 forthis adjustment is by a suitable implement turning an upright spindle24, having its bearings in the ram and connecting to screw 23 byunter-gearing 25. To prevent nut 22 from exerting anyunequal binding orspringing strains Within and against the sides of the ram, induced byits tendency to turn with screw 23, feathers 26 are provided on eachside of the former, which take into grooves 27 ou the inside of the ram,by which parts ram and uut 22 are confined to a longitudinal movement oneach other and on which parts they slide. The adjusted position of ram12 or nut 22 is fixed by a washer 2S, caused to im pinge on the formerby'lneans of a lock-nut 29, operated by a handle 30 on a lock-screw 31,which reaches through a slot 32 in the rain and passes into nut 22, towhich it is secured.

As will be seen, by reason of the forked upper end of the vibrating arin16, the two links 20, and the two flanges 21 on nut 22, a clear passageis provided centrally below the toolcarrier. This passage is lengthwiseextended byproviding openings 33 33 at proper height and in linetherewith in the opposite ends of the upper part of frame 8, so that noobstruction Whatever intervenes to the introduction below thetool-carrier of Work of any length which maybe passed in and readilyadjusted to any position wherever it may be required.

Having described my invention, I claim as l. In a Shaper or similarmachine-tool, the combination ot' the reciprocating tool-carrier, thevibrating arm 16, and the two links 20, to connect the vibrating arm tothe tool-carrier, said vibrating arm spreading at its upper end in twobranches or forks to the outside of each of which links 20, connect, toprovide an open clear space for the purpose described.

2. In a Shaper, or similar machine-tool, the combination of atool-carrier or ram 12, a nut 22, adj ustably supported Within ram 12,anges 2l depending therefrom on each side, a vibrating arm. 1G, havingthe two forkbranches 19 at its upper end, two links 20, each connectingone of the fork-branches 19 to one of the depending iianges 21 of nut22, to connect it to arin 16 for the purpose of .reciprocating it withrain 12, a traine S, on which this latter is supported, having openings33, in opposite ends in line with each other and inline with the openspace between the forked end of arm 16, links 2O and fianges 21depending from nut 22, thereby providing a continuously open andunobstructed passage clear through the machine. i

In testimony whereof I hereunto affix my signature in presence of twowitnesses.

HENRY DRESES. lVitnesses:

O. SPENGEL, C. FINN.

